I'm pretty much convinced that the fifth generation iPod touch will be the final generation. Furthermore, given how sluggishly it performs running iOS 8, I am also pretty much convinced that iOS 9 on it is out of the question (and even if it wasn't [Snow Leopard-esque release or not], it'd run it that much worse). Given this, I'm looking to replace my 64GB fifth generation iPod touch with a new 64GB iPhone 5s that I will find new and out of contract. I recognize the steep price and am not thrilled to be paying it, but I have invested way too much in iPhone/iPod touch apps over the years and would like to continue to use them despite that I'm still in my first year of owning a Galaxy S5 (I also don't want to switch to iPhone on a numerical non-S generation). Given this, and given the fact that the 64GB 5s is no longer sold by Apple, I'm wondering a couple of things. I'm giving thought to buying a factory unlocked 5s (given that buying a phone locked to my carrier would force me to set up a voice and texting plan [if I could do data only, I'd be peachy]): (1) Can I activate the iPhone (i.e. get past the setup assistant and get to a home screen where I can use iOS) without a SIM card or plan selected or does it need cellular service of some kind? (2) Does anyone know where I might be able to find the Apple SKU for said iPhone models (the MxxxxxLL/A number)? I figured this will help me find exactly what I'm looking for without buying something used or messed up by a prior user. (3) I'm thinking about buying this: http://www.amazon.com/Apple-iPhone-...34801&sr=1-4&keywords=iPhone+5s+64GB+Unlocked might that fit the bill? I'm hoping to also buy AppleCare+ on it. Any help is appreciated. Thanks.